46491621 has 16 divisors (see below), whose sum is σ = 67756608. Its totient is φ = 28121600.

The previous prime is 46491619. The next prime is 46491623. The reversal of 46491621 is 12619464.

It is an interprime number because it is at equal distance from previous prime (46491619) and next prime (46491623).

It is a cyclic number.

It is not a de Polignac number, because 46491621 - 2¹ = 46491619 is a prime.

It is a super-2 number, since 2×46491621² = 4322941646415282, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46491623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21301 + ... + 23381.

It is an arithmetic number, because the mean of its divisors is an integer number (4234788).

Almost surely, 2^46491621 is an apocalyptic number.

It is an amenable number.

46491621 is a deficient number, since it is larger than the sum of its proper divisors (21264987).

46491621 is a wasteful number, since it uses less digits than its factorization.

46491621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2772.

The product of its digits is 10368, while the sum is 33.

The square root of 46491621 is about 6818.4764427253. The cubic root of 46491621 is about 359.5767170110.

The spelling of 46491621 in words is "forty-six million, four hundred ninety-one thousand, six hundred twenty-one".